"The lack of a functioning Ex-Im Bank is not only one of those serious economic problems, but also one that can be easily solved given the strong bipartisan support for confirmation of the four Ex-Im Bank nominees,” Timmons wrote in a letter obtained by The Hill.

“Manufacturers want to see holds on these nominees lifted and swift action to move these nominations to the floor for consideration as soon as possible,” he wrote.

Toomey, who has called the bank a form of corporate welfare, had initially asked for the four nominees and Garrett to be confirmed together in the Senate.

Conservatives have repeatedly tried to shut down the bank, although it enjoys healthy bipartisan support in the House and Senate.

The agency's five-member board will be vacant on Friday when Scott Schloegel, who announced his resignation last week, departs his seat.

The Ex-Im Bank has been without a quorum — at least three members — on its board for more than two years, meaning it has been unable to consider deals greater than $10 million.

Manufacturers argue that they have lost billions of dollars in deals and that has deprived U.S. workers of good-paying jobs that would have been supported by Ex-Im Bank business.

"As a result, countries in Europe and beyond have been luring U.S. manufacturers to set up shop overseas to take advantage of foreign export financing because the U.S. system is effectively broken," Timmons wrote.

Last month, a bipartisan group of 68 House lawmakers urged Republican and Democratic Senate leaders to vote on the nominees.